On a leased line installation a known good external modem shows no carrier detect light. Where is the problem most likely to be? A. In the modem B. In the phone line C. In the computer D. In the DTC equipment E. None of the above

In the modem
In the phone line
In the computer
In the DTC equipment E. None of the above

The correct answer is: A. In the modem.

A leased line is a dedicated, private line that connects two or more locations. It is a more reliable and secure connection than a traditional dial-up connection.

A modem is a device that converts digital signals from a computer into analog signals that can be transmitted over a phone line. The carrier detect light on a modem indicates that the modem is connected to the phone line and is receiving a signal.

If the carrier detect light is not on, it means that there is a problem with the modem or the phone line. The most likely cause is a problem with the modem.

To troubleshoot the problem, you can try the following:

  • Check the modem’s power supply and make sure that it is plugged in and turned on.
  • Check the phone line and make sure that it is plugged in and not damaged.
  • Try connecting the modem to a different phone line.
  • If you are still having problems, contact your internet service provider.

Here is a brief explanation of each option:

  • Option A: In the modem. This is the most likely cause of the problem. If the modem is not receiving a signal from the phone line, the carrier detect light will not be on.
  • Option B: In the phone line. If the phone line is damaged or not connected properly, the modem will not be able to receive a signal.
  • Option C: In the computer. If the computer’s modem port is not working properly, the modem will not be able to connect to the computer.
  • Option D: In the DTC equipment. DTC equipment is used to test and troubleshoot leased lines. If there is a problem with the DTC equipment, it may not be able to detect a signal from the modem.
  • Option E: None of the above. This option is not likely to be the cause of the problem.